Amidst yesterday’s Worldwide Developers Conference announcements, Apple finally released Safari 4.0, the newest version of its web browser. The new version, available here, is reported to run JavaScript up to 4.5 times faster than Safari 3.
Other new features include Top Sites, Full History Search and Cover Flow, and support for modern web standards like HTML 5 and advanced CSS Effects.
Safari 4.0 requires Mac OS X 10.4 or later to install and run.

On Monday, Apple released the latest version of QuickTime, its multimedia support system for Mac OS X and Windows. The new version, known as QuickTime 7.6.2, is available as a variably-sized download (depending on version chosen through the download page), improves reliability, application compatibility and addresses security issues.
The update requires Mac OS X 10.4 or later to install and run and can be located and snagged via Mac OS X’s built-in Software Update feature.

Late Monday, Apple released iTunes 8.2, the latest version of its multimedia/jukebox application for Mac OS X. The new version, a 77.3 megabyte download, offers support for the iPhone or iPod touch with the iPhone 3.0 Software Update. The update also includes many accessibility improvements and bug fixes.
iTunes 8.2 requires Mac OS X 10.4 or later to install and run and can be located and downloaded via Mac OS X’s Software Update feature.

Amid a small series of updates yesterday, Apple released version 9.0.2 of its iWork ’09 productivity suite. The update, a 42.7 megabyte download, improves reliability when saving some iWork documents and when playing some presentations more than once per Keynote session.
The update, which can also be located via Mac OS X’s Software Update feature, requires Mac OS X 10.4 or later to install and run.

Late Thursday, Apple Released SMC Firmware Update 1.3 for its 15″ and 17″ MacBook Pro notebooks. The update, an 833 kilobyte download, adjusts the fan behavior in the notebooks when running under high workload conditions.
The updater application will be installed in the /Applications/Utilities folder, will launch automatically and requires Mac OS X 10.4.11 on the Mac OS X 10.4 end and Mac OS X 10.5.7 on the Mac OS X 10.5 end to install and run. As always, the firmware update can be snagged via Mac OS X’s built-in Software Update feature.

The lads at MacUpdate and Koingo Software have announced that they will be making copies of Koingo’s AirRadar 1.1.7 wireless network scanning software available for free.
AirRadar, which normally retails for US$10, allows users to scan for open networks and tag them as favorites or filter them out. Users can also view detailed network information, graph network signal strength, and automatically join the best open network in range.
The application also delivers other information, including encryption status, encryption type, encryption cipher, router MAC address, first and last seen date and time, noise level, and vendor information.
AirRadar 1.1.7 requires Mac OS X 10.4 or later to install and run and can be downloaded from here.

Adium, the open source instant message chat client with support for multiple programs (including AOL Instant Messenger, ICQ, Jabber, MSN, Yahoo! Google Talk, Bonjour, etc.) has been updated to version 1.3.4.
The new version, a 21.2 megabyte download, adds the following fixes and changes:

Facebook fixes:
Updated to pidgin-facebook 1.5.0, fixing a major bug in which massive amounts of data could be continuously sent and received under certain situations as well as several minor bugs.
Fixed a bug in which the Facebook numeric ID rather than name could be shown in the contact list (#11676).
Improved proxy support.

Fixed a crash when loading Jabber/XMPP account preferences when the computer’s host name is not set (#11246).

Fixed a display issue in message windows when running Safari 4.

Updated to libpurple 2.5.6.

Adium X is available for free and requires Mac OS X 10.4 or later to run. The program functions as a Universal Binary and runs at native speeds on both PowerPC and Intel-based hardware.

If you’re still running Mac OS X 10.4.x (“Tiger”), there’s no reason you shouldn’t feel as secure as a user running Mac OS X 10.5.7 with all its inherent updates. According to MacNN, Apple released Security Update 2009-002 for the previous operating system.
The update patches several areas of Tiger, including Apache, CoreGraphics, CUPS, Disk images, Flash Player plug-in, Help Viewer, Spotlight, X11, and more and fixes problems ranging from keeping PDFs opened in CoreGraphics from executing malicious code to preventing maliciously crafted Mach-O executables from causing the Finder to repeatedly terminate and relaunch.
There are four variants of the update (one each for Mac OS X 10.4.x on PowerPC and Intel-based hardware as well as two server versions) that can be located and installed via Mac OS X’s built-in Software Update feature.